package anime.project.dilidili.main;

import android.content.Context;
import android.graphics.Canvas;
import android.text.TextPaint;
import android.util.AttributeSet;
import android.view.Gravity;
import android.widget.TextView;

public class VerticalTextView extends TextView {
   final boolean topDown;

   public VerticalTextView(Context context, AttributeSet attrs){
      super(context, attrs);
      final int gravity = getGravity();
      if(Gravity.isVertical(gravity) && (gravity&Gravity.VERTICAL_GRAVITY_MASK) == Gravity.BOTTOM) {
         setGravity((gravity&Gravity.HORIZONTAL_GRAVITY_MASK) | Gravity.TOP);
         topDown = false;
      }else
         topDown = true;
   }

   @Override
   protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec){
      super.onMeasure(heightMeasureSpec, widthMeasureSpec);
      setMeasuredDimension(getMeasuredHeight(), getMeasuredWidth());
   }

   @Override
   protected void onDraw(Canvas canvas){
      TextPaint textPaint = getPaint();
      textPaint.setColor(getCurrentTextColor());
      textPaint.drawableState = getDrawableState();

      canvas.save();

      if(topDown){
         canvas.translate(getWidth(), 0);
         canvas.rotate(90);
      }else {
         canvas.translate(0, getHeight());
         canvas.rotate(-90);
      }


      canvas.translate(getCompoundPaddingLeft(), getExtendedPaddingTop());

      getLayout().draw(canvas);
      canvas.restore();
  }
}